Saw for iron



, April 23,1929. p, WN 1,710,549

SAW FOR IRON Filed April 9. 1928- INVENTOR Patented Apr. 23, 1929.

; UITEDT'STATES mass . PETER MUNGO, or o onno, ILLINOIS.

saw FOR IRON.

Application. filed April 9,

This invention relates to a new and useful tool in the nature of a hack saw especially adapted for the purpose of sawing or cutting iron.

The object of the invention is to provide a hack saw of new and novel construction comprising a means of adjustably holding a pair of haol: saw blades as a means of ten sioning the said blades as is highly desirable in a tool of this class.

A further object of the invention is the provision of a hack saw of comparatively heavy construction which will eliminate the necessity of pressing downward on the saw during the sawing operation.

Fig. 1 is a side elevational view ofmy improved hack saw.

Fig. 2 is a top plan view thereof.

Fig. 3 is a rear elevational view thereof.

Fig. 4 is a front elevational view thereof.

As here embodied my improved hack saw comprised a handle member 10, secured as at 11 to the extended extremity of the tubular member 12. The handle member is oppositely extended from the tubular member 12, and has formed thereon grip elements 13 and 14, for the purpose of providing a suitable handle. The extended extremities of the handle member is secured as'at 15 and 16, intermediately to the front support 17 which is secured. at its center as at 18 to the tubular member 12 and extended at right angles therefrom, and positioned in engagement with the enlarged portion-19 of the said tubular member.

The extension rod 20 is slidably mounted in the enlarged extended portion 21 of the above mentioned tubular member 12. Clips 22 and 23 are pivotally secured as at 24 and 25, respectively, by pins or the like carried in the lug elements 26 and 27 which are made integral with the extended portion 21 of the tubular member 12. Leaf springs 28 and 29 are secured at one extremity thereof, as at 30' and 31 to the extended portion 21 of the tubular member 12, and are extended therefrom and engage the'clips 22 and 23 respectively, as a means of normally holding the free extremities 32 and 33, of the clips 22 and 23 in engagement with any desired one of the notches 34 and 35 formed in the extended rod 20, for the purpose as hereinafter set forth.

The rear support 36 is secured -intermediately as at 37 to the extension rod 20, in proximity to the extended extremity of the said extension rod 20. The said rear sup- 1928. Serial No, 268.577.

port is extended parallel to or in the same plane as the above mentioned front support.

The hack saw blades 38 and 39 are of ordinary construction and design and are provi'ded with the usual conventional saw teeth 40 and 41. The clips 42 and43 are secured to the extended extremities of the front support 17 and are provided with extended elements 44 and 45, formed or bent upwardly at approximately right angles to the main portion of the said clips, and are adapted to engage in apertures formed in one of the extremities of the saw blades 38 and 39, respectively.

Clips 46 and 47 are slidably mounted in apertures formed in the extended extremities of the above mentioned rear support 36, and

are provided with extended elements 48 and I 49, formed or bent upwardly, at approximate ly right angles to the main portion of the said clips, and are adapted to engage in apertures formed in the extremities of the saw blades, opposite to the first mentioned clips 42 and 43.

The clips 46 and 47 are pivotally secured as at 50 and 51, respectively to the extended extremities of the levers 52 and 53, pivotally mounted intermediately, .as at 54 and 55 inthe lug? elements 56 and. 57 of the rear support The levers 52'and 53 are provided with inwardly extended elements 58 and 59.

having their extremities formed or bent outwardly therefrom and adapted to engage the threaded member 60, a wing nut or the like, threadedly mounted on the extended extremity 61 of the above mentioned extension rod 20. v

The above mentioned construction is such as will permit the extension rod to be held in any desired extended position relative tov the front support by means of the clips secured to the extended portion of the tubular member, for the purpose of holding the hack saw blades in position on the clips provided for this purpose. structionis such as will permit the wing nut to be positioned on the extended extremity of the extension and as a means of positioning the levers in engagement with the said wing nut, for the purpose of tensioning the said hack saw blades as is required to provide a suitable cutting medium.

The above described con-.

Having thus described my invention what '1. A hack saw of the class described, oomn prising a front and a rear support held in spaced relation, clips on the said front support for holding one of the ends of hack saws, other clips slidably mounted thru the rear support for holding the other ends of the hack saws, levers pivotally mounted on the 7 prising a front and a rear support held in spaced relation, clips on thesaid front support for holding one of the ends of hack saws, other clips slidably mounted thru the 7 rear support for holding the other ends of the hack saws, levers pivotally mounted on the rear support and having their outer ends pivotally connected "with the latter clips, and a means for moving the inner ends of the levers simultaneously for tensioning the hack saws simultaneously, consisting of a Wing nut abutting the levers and threadedly mounted on an extension -1'od projecting from the rear support.

In testimony whereof I haveaflixed my signature.

PETER MUNGO. 

